Results 21 to 30 of about 22,106 (166)

Analysis of watermarking techniques in multimedia communications [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2021
Multimedia information is critical of examining, information perceived and which are illustrated by the human cerebrum. In our brain, 33% of the cortical area concentrates only on visual information processing. Digital watermarking technology is
Sridhar Balakrishnan, Syambabu Vadlamudi
doaj   +1 more source

Scene-based imperceptible-visible watermarking for HDR video content [PDF]

open access: yes, 2019
This paper presents the High Dynamic Range - Imperceptible Visible Watermarking for HDR video content (HDR-IVW-V) based on scene detection for robust copyright protection of HDR videos using a visually imperceptible watermarking methodology.
Garcia-Ugalde, F.   +2 more
core   +1 more source

A constructive and unifying framework for zero-bit watermarking [PDF]

open access: yes, 2006
In the watermark detection scenario, also known as zero-bit watermarking, a watermark, carrying no hidden message, is inserted in content. The watermark detector checks for the presence of this particular weak signal in content. The article looks at this
Furon, Teddy
core   +7 more sources

Spread spectrum-based video watermarking algorithms for copyright protection [PDF]

open access: yes, 2002
Merged with duplicate record 10026.1/2263 on 14.03.2017 by CS (TIS)Digital technologies know an unprecedented expansion in the last years. The consumer can now benefit from hardware and software which was considered state-of-the-art several years ago ...
Serdean, Cristian Vasile
core   +2 more sources

Advanced Dipper-Throated Meta-Heuristic Optimization Algorithm for Digital Image Watermarking

open access: yesApplied Sciences, 2022
Recently, piracy and copyright violations of digital content have become major concerns as computer science has advanced. In order to prevent unauthorized usage of content, digital watermarking is usually employed.
El-Sayed M. El-Kenawy   +7 more
doaj   +1 more source

FEATURE-BASED DIGITAL WATERMARKING FOR REMOTE SENSING IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
With the rapid development of information and communication technology, people can acquire and distribute many kinds of digital data more conveniently than before.
P.-H. Hsu, C.-C. Chen
doaj   +1 more source

Time-Frequency Analysis and Its Application in Digital Watermarking

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
A review of time-frequency analysis and some aspects of its applications in digital watermarking are presented. The main advantages and drawbacks of various time-frequency distributions are first discussed.
Srdjan Stanković
doaj   +2 more sources

Implementation of Adaptive Unsharp Masking as a pre-filtering method for watermark detection and extraction [PDF]

open access: yes, 2016
Digital watermarking has been one of the focal points of research interests in order to provide multimedia security in the last decade. Watermark data, belonging to the user, are embedded on an original work such as text, audio, image, and video and thus,
Ilk, Hakki Gokhan, Jane, Onur
core   +2 more sources

Practical Challenges for Digital Watermarking Applications

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
The field of digital watermarking has recently seen numerous articles covering novel techniques, theoretical studies, attacks, and analysis. In this paper, we focus on an emerging application to highlight practical challenges for digital watermarking ...
Sharma Ravi K, Decker Steve
doaj   +1 more source

A contrast-sensitive reversible visible image watermarking technique [PDF]

open access: yes, 2009
A reversible (also called lossless, distortion-free, or invertible) visible watermarking scheme is proposed to satisfy the applications, in which the visible watermark is expected to combat copyright piracy but can be removed to losslessly recover the ...
Li, Chang-Tsun   +4 more
core   +1 more source

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